I am an avian evolutionary biologist. My interests include species concepts and speciation, phylogeography, molecular evolution, biogeography, the evolution of Darwin's finches, the evolution of migration, and conservation genetics.

Selected Publications

Barrowclough GF, Cracraft J, Klicka J, Zink RM (2016) How Many Kinds of Birds Are There and Why Does It Matter? PLoS ONE 11(11): e0166307. Online